haskal
/
kicad
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Eeschema: fix a crash that sometimes happens with bus entries, 

connected to the same point on a bus.
The pointers used in previous code could be null, but they were not tested.
The pointer validity is now tested.
This commit is contained in:
jean-pierre charras 2019-12-22 16:19:05 +01:00
parent 18ff60fbb9
commit 7b80b2dc7b
3 changed files with 21 additions and 13 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
eeschema/connection_graph.cpp
View File

@ -2015,6 +2015,11 @@ bool CONNECTION_GRAPH::ercCheckBusToBusEntryConflicts( const CONNECTION_SUBGRAPH
if( bus_entry && bus_entry->m_connected_bus_item ) if( bus_entry && bus_entry->m_connected_bus_item )
{ {
bus_wire = bus_entry->m_connected_bus_item; bus_wire = bus_entry->m_connected_bus_item;
// In some cases, the connection list (SCH_CONNECTION*) can be null.
// Skip null connections.
if( bus_entry->Connection( sheet ) && bus_wire->Connection( sheet ) )
{
conflict = true; conflict = true;
auto test_name = bus_entry->Connection( sheet )->Name( true ); auto test_name = bus_entry->Connection( sheet )->Name( true );
@ -2033,6 +2038,7 @@ bool CONNECTION_GRAPH::ercCheckBusToBusEntryConflicts( const CONNECTION_SUBGRAPH
} }
} }
} }
}
if( conflict ) if( conflict )
{ {

3
eeschema/sch_item.cpp
View File

@ -127,7 +127,8 @@ bool SCH_ITEM::IsConnected( const wxPoint& aPosition ) const
SCH_CONNECTION* SCH_ITEM::Connection( const SCH_SHEET_PATH& aSheet ) const SCH_CONNECTION* SCH_ITEM::Connection( const SCH_SHEET_PATH& aSheet ) const
{ {
if( m_connection_map.count( aSheet ) ) // Warning: the m_connection_map can be empty.
if( m_connection_map.size() && m_connection_map.count( aSheet ) )
return m_connection_map.at( aSheet ); return m_connection_map.at( aSheet );
return nullptr; return nullptr;

1
eeschema/sch_item.h
View File

@ -327,6 +327,7 @@ public:
/** /**
* Retrieves the connection associated with this object in the given sheet * Retrieves the connection associated with this object in the given sheet
* Note: the returned value can be nullptr.
*/ */
SCH_CONNECTION* Connection( const SCH_SHEET_PATH& aPath ) const; SCH_CONNECTION* Connection( const SCH_SHEET_PATH& aPath ) const;